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Co ntrolling the polarization of hydrogen gas target in HERMES experiment

May 28, 2004. Co ntrolling the polarization of hydrogen gas target in HERMES experiment. 04M01055 Yoshimitsu Imazu Shibata lab. 2 km. e. HERMES. HERA ring ( the H ardon -E lectron R ing A ccelerator ). The HERMES Experiment

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Co ntrolling the polarization of hydrogen gas target in HERMES experiment

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  1. May 28, 2004 Controlling the polarization of hydrogen gas target in HERMES experiment 04M01055 Yoshimitsu Imazu Shibata lab.

  2. 2 km e HERMES HERA ring ( the Hardon-Electron Ring Accelerator ) The HERMESExperiment (HERa MEasurement of Spin) DESY in Hamburg ( Deutsches Elecktronen-SYnchrotron ) Deep-inelastic scattering, elastic scattering on quarks The spin structure of the proton

  3. ★The luminosity is still comparable, cf. solid target (C H - OH, etc.). n m Polarized Proton Target Hydrogen atom Internal gaseous target → ★The target is pure hydrogen

  4. Atomic Beam Source (ABS) Sextupole Magnets Dissociator Electron Beam Line Resonance Units 1,524 mm The ABS can select required proton polarization of the hydrogen atoms using the well-known principle ofStern-Gerlach separation →How dose the ABS control the proton polarization of hydrogen gas ?

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